Synthesis and characterization of Fe-substituting BaO nanoparticles by sol-gel method

Barium oxide have wide attention towards electronic device applications because of their exceptional structural, optical, electrical properties. Sol-gel process was used to prepare the nanocrystalline barium oxide. XRD investigation confirms that that the synthesized Barium oxide nanoparticles highly crystalline nature and have tetragonal structure. The crystal size measured by Scherrer formula and obtained values lies in the range (2.3- 6.7nm). The SEM micrographs revealed a reducing agglomeration and porosity with the enrichment in the doping content. IR analysis revealed that prepared samples have high purity while Raman spectra exhibited that the bands intensity of the synthesized nanoparticles was enhanced due to enhancement in force constant with the addition of doping content. UV-vis spectra analysis, performed to study the optical properties, revealed that optical band gap was decrease with increase of the doping content and obtained band gap results lies in the range (1.99-1.85 eV). Moreover, the conductivity of the prepared sample was observed increased from 7.28 × 10-5 Ʊ cm-1 to 1.79 × 10-3 Ʊ cm1, while the resistivity was decreased from 1.1 ×104 Ω cm to 5.58 ×102 Ω cm with the increasing of the doping content. The explored results exhibited that the doping iron content, enhanced the characteristics of prepared oxides. Such characteristics of BaO make a potential candidate for electronic device applications.